regret的解释
n. 遗憾,后悔,抱歉
v. 为...感到遗憾,后悔,惋惜
regret的例句
We informed her with regret of our decision.
我们遗憾地把我们的决定通知她。

She immediately regretted her decision.
她做出决定后立即感到后悔。